Along with the purchase of any Comp cam and lifters, we also strongly recommend using Comp's engine break in oil additive. This is it essential to make sure your cam and lifters are fully covered under Comp's warranty. It's a well known fact that, due to EPA regulations and other reasons, over the last few years oil manufacturers have removed the Zinc and other additives from their motor oil. If you try to break in a brand new cam and just add regular "off the shelf" motor oil from your local parts store, it is VERY likely you will have a failure. You must add this additive to the oil to replenish the zinc which is no longer included by the oil manufacturers. This works with synthetics, blended, and standard petroleum oils. In our own engines, we usually get a couple extra bottles to keep on the shelf and add one at every oil change. It's cheap insurance.
CAN BE SHIPPED BY REGULAR GROUND ONLY TO U.S. ADDRESSES ONLY.